WordPress is a state-of-the-art, semantic, personal publishing platform with a focus on aesthetics, Web standards, and usability. It was born out of a desire for an elegant, well-architected personal publishing system. While primarily geared towards functioning as a Weblog, WordPress is also a flexible CMS capable of managing many types of Web sites. In addition to the basic blog functions, it also has an integrated link manager, categories, tags, custom taxonomies, file attachments, XFN support, support for stand-alone pages, Atom and RSS feeds for both content and comments, blogging API support (Atom Publishing Protocol, Blogger, MetaWeblog, and Movable Type APIs), spam blocking features, advanced cruft-free URL generation, a flexible theme system, and an advanced plugin API.

Geeklog is the weblog software that concentrates on performance, privacy, and security. It features Web-based administration, surveys (polls), user-customizable boxes, a friendly administration GUI with a topic manager, an option to edit or delete stories, an option to delete comments, a search engine, backend/headlines generation (RSS/Atom format), calendaring, and much more.

THIS (This HTML Is Simple) is a content management system with blog capabilities. It features HTML templates, themes, and an extensible database design, with an emphasis on code/data separation, but it has many odd features and requires much manual maintenence.

Exponent CMS is a content management system for Web sites. It allows site owners to easily create and manage dynamic Web sites without necessarily directly coding Web pages or managing site navigation. Exponent uses an intuitive and flexible content editing system that allows Web pages to be edited on the page as it is displayed. This avoids the need for more back-end administration or for navigating many administration pages to add a simple line of text. You can simply visit the page you need to edit as if you were a site visitor, and make the change.

Magnolia is a CMS which delivers smartphone simplicity on an enterprise scale. The mobile-inspired HTML5 user interface works through customisable, task-focused Apps, a notification stream called the Pulse, and a system of Favorites for quickly accessing the workspace. Magnolia allows organizations to orchestrate online services, sales, and marketing across all digital channels, maximizing the impact of every touchpoint. Magnolia’s Open Source technology, support of open standards such as CMIS and JCR, and integration with the Spring Framework enable developers to unlock backend systems and third-party applications. Magnolia is used in more than 100 countries across the world by governments and leading FORTUNE 500 enterprises.

Novius OS is a CMS that takes up the challenge of managing Web content in today’s multi-channel environment. Its goal is to provide users with one single tool for their digital communication: Web sites, social networks, mobile applications, email, and custom business applications. It is based on the FuelPHP framework. It uses an HTML5 interface, the jQuery UI framework, and the Wijmo and TinyMCE plugins.

Bricolage greatly simplifies the complex tasks of creating, managing, and publishing vast libraries of content. With advanced features such as fully-configurable workflows, customizable document types, and comprehensive Perl and PHP templating support, it has been designed from the ground up to scale to meet the demanding needs of large organizations around the world.

RedKite CMS is a Content Management System built on top of Symfony2 and Twitter-Bootstrap frameworks. It lets you manage the content of your website inline, using an interface designed to increase the quality of the user experience. You are not required to have technical skills related to Web programming to build a website using this CMS.

sux0r is a blogging package, an RSS aggregator, a bookmark repository, and a photo publishing platform with a focus on Naive Bayesian categorization and probabilistic content. It is OpenID 1.1 enabled; as both a consumer and a provider.